InstanceSet testset = splitsets[1];
System.out.print("..Spliting complete!\n");
System.out.print("Training Knn...\n");
time_mark=System.currentTimeMillis();
SparseVectorSimilarity sim=new SparseVectorSimilarity();
pp.removeTargetPipe();
KNNClassifier knn=new KNNClassifier(trainset, pp, sim, af, 9);
af.setStopIncrement(true);
ItemFrequency tf=new ItemFrequency(trainset);